-- 30N
-- the sum of all the forces
The square root of 80 is: 8.944
The answer is C) The water pushed up on the skis
The water reacts to the downward force of the skis by pushing back up against the skis.
The momentum of two or more objects during collisions is not lost nor gained
On an approximate scale, A child breaths 20 times a minute as compared to only 12 to 16 in resting phase of an Adult.
So, In 60 minutes (1 hour), They breathe = 20 * 60 = 1200
In 24 hours (1 day), They breathe = 1200 * 24 = 28,800
In short, Your Answer would be: 28,800
Hope this helps!
